202112110002120 has 64 divisors (see below), whose sum is σ = 606337872013440. Its totient is φ = 53896425600000.

The previous prime is 202112110002107. The next prime is 202112110002137. The reversal of 202112110002120 is 21200011211202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 202112110002120.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50637445 + ... + 54482795.

It is an arithmetic number, because the mean of its divisors is an integer number (9474029250210).

Almost surely, 2^{202112110002120} is an apocalyptic number.

202112110002120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202112110002120 is an abundant number, since it is smaller than the sum of its proper divisors (404225762011320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202112110002120 is a wasteful number, since it uses less digits than its factorization.

202112110002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4283366 (or 4283362 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 202112110002120 its reverse (21200011211202), we get a palindrome (223312121213322).

The spelling of 202112110002120 in words is "two hundred two trillion, one hundred twelve billion, one hundred ten million, two thousand, one hundred twenty".